Every other Tiger update has changed my airport card connectivity - luckily for me, its the odds that make it work well. I remember people saying the .10 fixed all their problems and and others saying it caused all of their problems. Seems like its going to happen again - did Apple install two different kinds of airport cards over the last year?
I have had the dropped wireless issue on the MBP w/ 10.4.10. It only occurs for me on battery power (fine when plugged into ac). The fix for me was to switch the router to B only (not B&G- It is an Airport Express). Macbook Pro is rock solid and 4 bars all the time w/no dropouts. If I switch it to Mixed mode (B&G) it will go to 2 bars, strentgh goes up and down and will drop within a minute or two. I didn't want to downgrade to 10.4.9, so I leave it in B mode only, and have not had a drop to date. (doesn't really bother me as I use the network for DSL only- no wireless file transfer). Anyone use the MBP w the airport extreme gigabit router and have dropouts in N mode ? (mixed or N only ?) Just curious.